[U-Boot] [PATCH v2 3/3] usb_storage: Fix EHCI "out of buffer pointers" with CD-ROM

[Wolfgang Denk <wd@denx.de>]

Dear Kyle Moffett,

In message <1324487292-7299-4-git-send-email-Kyle.D.Moffett@boeing.com> you wrote:
> When performing large bulk reads from a CD or DVD using the U-Boot
> usb_storage driver, it generates requests of up to 20 blocks at a time.
> 
> With a standard 512-byte block size, that is 10240 bytes and within the
> limit of U-Boot's EHCI driver (maximum 5 pages at 4k per page).
> 
> Unfortunately CD-ROM media has a 2048-byte blocksize, resulting in a
> maximum transfer size of 40960 bytes, which does not fit.
> 
> Since the EHCI specification is impossibly obtuse and far beyond my
> comprehension, I chose to dynamically compute the limit based on the
> blocksize.
> 
> Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
> 
> --
> 
> v2:
> Minor whitespace fixes
> 
> ---
>  common/usb_storage.c |   45 +++++++++++++++++++++++++--------------------
>  1 files changed, 25 insertions(+), 20 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

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